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Laser surface engineering of Ti-6Al-4V with TiO2/Al2O3 composite powder for improved wear resistance.

Laser surface engineering of Ti-6Al-4V with TiO2/Al2O3 composite powder for improved wear resistance.

Authors :
Yitian Zhao
Mingyuan Lu
Zhiqi Fan
Yu Yin
Weikang Lin
Han Huang
Source :
Smart Materials in Manufacturing; 2023, Vol. 1, p1-13, 13p
Publication Year :
2023

Abstract

Titanium (Ti) alloys are often the materials of choice used in light-weighting strategies in manufacturing. However, their tribological performance needs to be improved. In this work, a laser surface engineering process using titania/alumina (TiO<subscript>2</subscript>/Al<subscript>2</subscript>O<subscript>3</subscript>) composite powders was developed for Ti-6Al-4V alloy to enhance its wear resistance. This process resulted in the formation of a novel Al<subscript>x</subscript>O<subscript>y</subscript>/TiO<subscript>x</subscript>N<subscript>y</subscript>/α-Ti composite coating. The Al<subscript>x</subscript>O<subscript>y</subscript> particles were firmly embedded in the matrix, forming a semi-coherent interface with TiOxNy dendrites, which could strengthen the composite coating. The incorporation of fine Al<subscript>2</subscript>O<subscript>3</subscript> particles also improved the laser absorptivity of the starting powders and decreased melt viscosities, leading to the considerable reduction in the porosity and crack density in the coatings. The wear resistance of the coatings made with the composite powders was superior to that made with the pure TiO<subscript>2</subscript> powder. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
27728102
Volume :
1
Database :
Complementary Index
Journal :
Smart Materials in Manufacturing
Publication Type :
Academic Journal
Accession number :
176855824
Full Text :
https://doi.org/10.1016/j.smmf.2023.100015